My Boat; The Mirage, Intruder is powered by a 502 EFI Mercruiser (stock) It has dual external hydraulic steering, with 12" x 16" trim tabs. The drive has a 1-1:36 gear ratio and a 23" Mirage Prop. My little secrets are the 6 speed rails on the lift strakes. On a cool day we can do an honest 73 mph with all the gear and half a tank of fuel, at sea level. There's a Sony wireless remote stereo system, with three Nakamichi Amps bumping the speakers. My fave thing is to do cruise the local waters and visit all the cool marine parks and places by getting there fast. Oh yes there's a silent choice on the exhaust outlets, and I use them often so we are not annoying when around other boaters.